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GeForce 8600 GT 512MB GDDR3 vs GeForce GTX 860M

Intro

The GeForce 8600 GT 512MB GDDR3 has a GPU clock speed of 540 MHz, and the 512 MB of GDDR3 RAM runs at 700 MHz through a 128-bit bus. It also features 32 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare all of that to the GeForce GTX 860M, which uses a 28 nm design. nVidia has set the core speed at 797 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this particular model. It features 1152 SPUs as well as 96 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M 45 Watts
GeForce 8600 GT 512MB GDDR3 47 Watts
Difference: 2 Watts (4%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M should perform quite a bit faster than the GeForce 8600 GT 512MB GDDR3 overall. (explain)

GeForce GTX 860M 64000 MB/sec
GeForce 8600 GT 512MB GDDR3 22400 MB/sec
Difference: 41600 (186%)

Texel Rate

The GeForce GTX 860M is a lot (more or less 786%) faster with regards to texture filtering than the GeForce 8600 GT 512MB GDDR3. (explain)

GeForce GTX 860M 76512 Mtexels/sec
GeForce 8600 GT 512MB GDDR3 8640 Mtexels/sec
Difference: 67872 (786%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 860M is a better choice, by a large margin. (explain)

GeForce GTX 860M 12752 Mpixels/sec
GeForce 8600 GT 512MB GDDR3 4320 Mpixels/sec
Difference: 8432 (195%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce 8600 GT 512MB GDDR3

Amazon.com

Check prices at:

GeForce GTX 860M

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 8600 GT 512MB GDDR3 GeForce GTX 860M
Manufacturer nVidia nVidia
Year April 2007 March 12 2014
Code Name G84 GM107
Memory 512 MB 4096 MB
Core Speed 540 MHz 797 MHz
Memory Speed 1400 MHz 4000 MHz
Power (Max TDP) 47 watts 45 watts
Bandwidth 22400 MB/sec 64000 MB/sec
Texel Rate 8640 Mtexels/sec 76512 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 12752 Mpixels/sec
Unified Shaders 32 1152
Texture Mapping Units 16 96
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 80 nm 28 nm
Transistors 289 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 512MB GDDR3

Amazon.com

Check prices at:

GeForce GTX 860M

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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